bug#18454: Improve performance when -P (PCRE) is used in UTF-8 locales

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bug#18454: Improve performance when -P (PCRE) is used in UTF-8 locales

From:	Paul Eggert
Subject:	bug#18454: Improve performance when -P (PCRE) is used in UTF-8 locales
Date:	Thu, 25 Sep 2014 17:23:02 -0700
User-agent:	Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.1.2

Thanks for looking into that. The attached patches solve thoseperformance problems for me.

0001-grep-scan-for-valid-multibyte-strings-more-quickly.patch
Description: Text document

0002-grep-don-t-check-extensively-for-invalid-prefix-byte.patch
Description: Text document

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bug#18454: Improve performance when -P (PCRE) is used in UTF-8 locales, (continued)
- bug#18454: Improve performance when -P (PCRE) is used in UTF-8 locales, Paul Eggert, 2014/09/16
  - bug#18454: Improve performance when -P (PCRE) is used in UTF-8 locales, Jim Meyering, 2014/09/17
    - bug#18454: Improve performance when -P (PCRE) is used in UTF-8 locales, Paul Eggert, 2014/09/17
  - bug#18454: Improve performance when -P (PCRE) is used in UTF-8 locales, Norihiro Tanaka, 2014/09/17
    - bug#18454: Improve performance when -P (PCRE) is used in UTF-8 locales, Eric Blake, 2014/09/17
    - bug#18454: Improve performance when -P (PCRE) is used in UTF-8 locales, Paul Eggert, 2014/09/17
- bug#18454: Improve performance when -P (PCRE) is used in UTF-8 locales, Paul Eggert, 2014/09/18
  - bug#18454: Improve performance when -P (PCRE) is used in UTF-8 locales, Santiago Ruano Rincón, 2014/09/18
    - bug#18454: Improve performance when -P (PCRE) is used in UTF-8 locales, Jim Meyering, 2014/09/18
    - bug#18454: Improve performance when -P (PCRE) is used in UTF-8 locales, Jim Meyering, 2014/09/19
    - bug#18454: Improve performance when -P (PCRE) is used in UTF-8 locales, Paul Eggert <=
    - bug#18454: Improve performance when -P (PCRE) is used in UTF-8 locales, Jim Meyering, 2014/09/27
    - bug#18454: Improve performance when -P (PCRE) is used in UTF-8 locales, Paul Eggert, 2014/09/27
    - bug#18454: Improve performance when -P (PCRE) is used in UTF-8 locales, Jim Meyering, 2014/09/28
- bug#18454: Improve performance when -P (PCRE) is used in UTF-8 locales, Zoltán Herczeg, 2014/09/22
  - bug#18454: Improve performance when -P (PCRE) is used in UTF-8 locales, Paul Eggert, 2014/09/25
    - bug#18454: Improve performance when -P (PCRE) is used in UTF-8 locales, Zoltán Herczeg, 2014/09/26
    - bug#18454: Improve performance when -P (PCRE) is used in UTF-8 locales, Paul Eggert, 2014/09/26
    - bug#18454: Improve performance when -P (PCRE) is used in UTF-8 locales, Zoltán Herczeg, 2014/09/26
    - bug#18454: Improve performance when -P (PCRE) is used in UTF-8 locales, Paul Eggert, 2014/09/26
    - bug#18454: Improve performance when -P (PCRE) is used in UTF-8 locales, Zoltán Herczeg, 2014/09/27

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